### QPx_OpenTagContainer

QPx_OpenTagContainer(tagContainerRef; tagContainer):error
| tagContainerRef | Longint | Tag container reference
| tagContainer | BLOB | Tag container data
| error | Longint | Error result

Opens a tag container BLOB and returns a reference number. The tag container reference number is used to access information about the tags present in the container with other tag commands.

Parameter tagContainerRef receives the tag container reference number.

Parameter tagContainer is the tag container to be opened. The tag container BLOB can be retrieved by calling QPx_GetImageFileTagContainer when working with image files, or QPx_GetImporterTagContainer when using graphics importers.

After finishing working with the tag container you must call QPx_CloseTagContainer to release any memory allocated by QPx_OpenTagContainer.

Related commands

QPx_CloseTagContainer | Closes a tag container
QPx_GetTagInstances | Retrieves all tags present in a tag container

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